If it doesn't pressurize the room it's not worth listening to. Very little does an adequate job on that front - including many a boxed speakers. It's a reason Ray Seda and I bypass a lot of speakers that some people like a lot but we simply could not live with them.

For late night listening a good headphone system is inexpensive to attain.

Also JohnMichael - I hate to say it but for many people Mozart for them is like rap music to people who hate rap music.

I am surprised there would be that much bleed through with Wolfgang as it's not exactly the most bass heavy of music (generally).